Home / 30,210.66-45,331.32-13,567.28

Finding the Fourth Proportional to 30,210.66, 45,331.32 and 13,567.28

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Solution

The fourth proportional to 30,210.66, 45,331.32 and 13,567.28 is: 20,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.66 : 45,331.32 = 13,567.28 : x
  2. Step 2: Convert to fraction form
    30,210.66/45,331.32 = 13,567.28/x
  3. Step 3: Cross multiply
    30,210.66x = 45,331.32 × 13,567.28
  4. Step 4: Simplify right side
    30,210.66x = 615,022,484.55
  5. Step 5: Solve for x
    x = 615,022,484.55/30,210.66
  6. Step 6: Final answer
    x = 20,357.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.